$url = "your url";    

$content = json_encode("your data to be sent");

​

$curl = curl_init($url);

curl_setopt($curl, CURLOPT_HEADER, false);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

curl_setopt($curl, CURLOPT_HTTPHEADER,

        array("Content-type: application/json"));

curl_setopt($curl, CURLOPT_POST, true);

curl_setopt($curl, CURLOPT_POSTFIELDS, $content);

​

$json_response = curl_exec($curl);

​

$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

​

if ( $status != 201 ) {

    die("Error: call to URL $url failed with status $status, response $json_response, curl_error " . curl_error($curl) . ", curl_errno " . curl_errno($curl));

}

​

​

curl_close($curl);

​

$response = json_decode($json_response, true);

$data = json_decode(file_get_contents('php://input'), true);

print_r($data);

echo $data["operacion"];

$data = json_decode(file_get_contents('php://input'), true);

​

$url = "http://example.com/api";  // URL for the POST request

$data = array(

    'name' => 'John Doe',

    'email' => 'johndoe@example.com'

);

​

$options = array(

    'http' => array(

        'header' => "Content-type: application/json",

        'method' => 'POST',

        'content' => json_encode($data)

    )

);

​

$context = stream_context_create($options);

$response = file_get_contents($url, false, $context);

​

// Handle the response from the API

if ($response === FALSE) {

    // Error occurred

    echo "Error occurred while making the POST request";

} else {

    // Success

    echo "POST request was successful!";

    var_dump($response); // Output the response received from the API

}

<?php

  $json = '{

      "title": "PHP",

      "site": "GeeksforGeeks"

  }';

  $data = json_decode($json);

  echo $data->title;

  echo "\n";

  echo $data->site;

?>